Can the relative humidity be calibrated by the user?

Neither relative humidity nor temperature can be calibrated by the user. User's manual does not mention this possibility.

Can this item be sent in for re-calibration periodically, and updated certificate?

All the items have been calibrated before sending out, and if you need to calibate again, then you can send it to us for re-calibration, but it will cost a lot of time and shipping fee

?Viene con el certificado de calibración?

Thank you for your question. If you need it you can contact our customer service and we will send you a calibration operation manual, which is recommended to be used under professional personnel and operating equipment.

Has anyone who bought this unit tested it for accuracy?

That I do not know. what I can say is that the temperature it shows is close to what the weather people say the temp.s are. I bought it because the local weather people have decided to no longer give the dew points in the forecast. I do know that the higher the dew point reading the device shows the more humid it feels. I also had issue with deciding to just give a date on the map as to when the "Monsoon season" starts and stops. The method of a dew point higher than 55degrees 3 days in a row for the start and below 55 degrees 3 days in a row for the end makes more sense.

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PT6508 Temperature Humidity Meter, Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, Wet Bulb for Indoor/Outdoor MIN, MAX, Data Hold, LCD Backlight

Product ID: 224416150

Details

Battery description
4 x 1.5 V AAA
Brand
Protmex
Colour
Orange
Item weight
190 Grams
Product dimensions
6W x 18.4H

💡LCD backlight for low-light use

📊MIN/MAX data tracking

🌡️4-in-1 temp & humidity sensor

546.20 DT

Duties & taxes included

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🌿 Master your microclimate with Protmex precision!

READY FOR ANY SETTING - Backlit LCD ensures clear visibility even in dim or dark environments.
SMART POWER MANAGEMENT - Auto shutdown and low battery indicator maximize uptime and convenience.
DATA AT YOUR FINGERTIPS - MIN/MAX tracking and data hold functions keep your critical measurements accessible.
PRECISION YOU CAN TRUST - High-accuracy sensor covers -20℃ to 60℃ and 0-100% RH for reliable data every time.
ALL IN ONE CLIMATE INSIGHT - Combines temperature, humidity, dew point & wet bulb readings for total environmental control.

The Protmex PT6508 is a versatile digital psychrometer combining temperature, humidity, dew point, and wet bulb measurements in one compact device. Designed for professionals in HVAC, agriculture, meteorology, and more, it features a high-accuracy sensor, backlit LCD, data hold, MIN/MAX tracking, and smart power-saving functions, making it an essential tool for precise indoor and outdoor environmental monitoring.

Specifications

ASIN	B017NF1POE
Battery Description	4 x 1.5 V AAA batteries
Best Sellers Rank	100,708 in Garden ( See Top 100 in Garden ) 396 in Hygrometers
Brand	Protmex
Colour	Orange
Customer Reviews	4.6 4.6 out of 5 stars (896)
Global Trade Identification Number	06051651879433
Included Components	4 x AAA Batteries, 1 x Packing Bag, 1 x Use Manual
Item Dimensions W x H	6W x 18.4H centimetres
Item Length	7.2 Inches
Item Weight	190 Grams
Manufacturer	PROTMEX
Manufacturer Part Number	PPM-TI002-3
Model Number	CECOMINOD046940
Mounting Type	Tabletop
Number of Items	1
Number of Packs	1
Operating Humidity	0%-100%
Temperature Accuracy	1.5 grados Celsius
Temperature Reading Accuracy	plus_minus_1_point_5_degrees_celsius
Unit Count	1.0 count
Upper Temperature Rating	140 Degrees Fahrenheit
Voltage	1.5 Volts

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546.20 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Good experience, but the tracking updates could be better.

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